Delta Duct 30-36 AF – Thermal Insulation Anti-fungal Protective Coating
Delta Duct 30-36 AF is a flexible adhesive and sealant formulated to create a durable, airtight seal for HVAC thermal insulation systems on metal ducts. With excellent water, UV, and fungi resistance, it is suitable for both indoor and outdoor use—even in environments where humidity must be maintained at or above 90%. :contentReference[oaicite:0]{index=0}
Key Features
- Air-leakage control: Forms a flexible, durable seal to minimize energy loss.
- Anti-fungal & anti-bacterial: Protection against a wide range of fungi; helps preserve IAQ.
- Water & UV resistant: Reliable outdoors and indoors; engineered for harsh climates.
- Chemical resistance: Withstands common contaminants in mechanical rooms and rooftops.
- Non-toxic & non-flammable: Safer handling and application.
- Middle East climate ready: Proven performance in hot, humid, and high-UV conditions. :contentReference[oaicite:1]{index=1}
Typical Applications
- Topcoat and protective seal for metal duct insulation systems.
- Areas requiring sustained ≥90% relative humidity without performance loss.
- Projects demanding anti-fungal protection and UV/weather durability. :contentReference[oaicite:2]{index=2}
How to Apply
- Tack coat: Apply Delta Duct 30-36 AF at approximately 5 m² per liter. Immediately embed the selected lagging fabric smoothly into the wet coating.
- Finish coats: Apply two finish coats of Delta Duct 30-36 AF. Ensure each coat is fully cured before applying the next. (Dry film thickness varies with fabric.)
Note: The source guidance states “apply two finish coats … at rate of 4 liter”; follow project method statements and mock-ups to confirm coverage on your substrate and fabric system. :contentReference[oaicite:3]{index=3}
Technical Specifications
| Base | Selective synthetic resin |
| Components | One |
| Consistency | Thixotropic paste |
| Solids by volume | 62% ± 5% |
| Viscosity (Brookfield) | 25,000–50,000 cps |
| Specific Gravity | ≈ 1.26 (per TDS stated tolerance) |
| Bonding Time | ~45 minutes @ 20 °C & 50% RH |
| Drying Time | ~3–5 hours (ambient-dependent) |
| Service Temperature | Up to 212 °F (100 °C) |
| Flash Point | Non-flammable |
| Cured Film | Flexible |
| Water Tightness | Excellent |
| Chemical Resistance | Good |
| Insulation Properties | Excellent |
| UV Resistivity | Good |
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